This is merely a historical archive of years 2008-2021, before the migration to mailman3.
A maintained and still updated list archive can be found at https://lists.osmocom.org/hyperkitty/list/OpenBSC@lists.osmocom.org/.
Holger Hans Peter Freyther holger at freyther.deOn Sat, Oct 25, 2014 at 06:18:38PM +0900, Pierre Kim wrote: > Hello, Hi, > I am using a nanoBTS EDGE model. that is what I assumed. You will need to figure out what the ip.access PCU is doing. > An iPhone on the same BTS doesn't have this issue. > But Samsung phones and HTC Diamond do. Different stacks, different firmware, it doesn't say much. But please have a look at the trace: Packet Delta-TS Direction TLLI message #7 0 MS->SGSN 2584537203 GMM Attach Request #8 ~0s SGSN->MS 2584537203 GMM Identity Request #10 ~2s PCU->SGSN - LLC Discarded In packet #10 the PCU tells the SGSN that 9 octets could not be transferred. Assuming you included the full trace the '9' are the nine bytes of the "LLC/GMM Identity Request". This means that the closed source PCU of the nanoBTS EDGE model couldn't transfer the LLC data to the MS within the 2s deadline that was set in the PDU-Lifetime of packet #8. Now nobody in this community can tell you why the PCU of the nanoBTS doesn't transfer it. Last time I tried to contact an engineer at ip.access (the one that patched GSMTAP for PDCH handling), I was ignored. kind regards holger